1991/0720/pc/fault386.c (diff list | history)

1991/0719/sys/src/9/pc/fault386.c:15,27 – 1991/0720/sys/src/9/pc/fault386.c:15,28 (short | long | prev | next)
1991/0718		int read; int user;
1991/0719		int n;
1991/0720		int insyscall;
1991/0719		static int times;
1991/0718
1991/0720		insyscall = u->p->insyscall; u->p->insyscall = 1;
1991/0718		addr = getcr2();
1991/0719		print("fault386 %lux ur %lux\n", addr, ur); dumpregs(ur); if(++times==3) panic("3rd time"); if(faulting) panic("double fault\n"); faulting = 1;
1991/0719/sys/src/9/pc/fault386.c:28,38 – 1991/0720/sys/src/9/pc/fault386.c:29,41
1991/0718		read = !(ur->ecode & 2); user = (ur->ecode & 4);
1991/0719		n = fault(addr, read); print("fault returns %d\n", n);
1991/0720		if(++times==3) panic("3rd time in fault");
1991/0719		if(n < 0){
1991/0718		if(user){ pprint("user %s error addr=0x%lux\n", read? "read" : "write", addr); pprint("status=0x%lux pc=0x%lux sp=0x%lux\n", ur->flags, ur->pc, ur->usp);
1991/0720		pprint("user %s error addr=0x%lux\n", read?"read":"write", addr); pprint("status=0x%lux pc=0x%lux sp=0x%lux\n", ur->flags, ur->pc, ur->usp);
1991/0718		pexit("Suicide", 0); } u->p->state = MMUing;
1991/0719/sys/src/9/pc/fault386.c:40,45 – 1991/0720/sys/src/9/pc/fault386.c:43,49
1991/0718		panic("fault: 0x%lux", addr); }
1991/0719		faulting = 0;
1991/0720		u->p->insyscall = insyscall;
1991/0710		} void